<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>CSS Reference: Ruby with text-combine-upright in base</title>
  <link rel="author" title="Xidorn Quan" href="mailto:csswg@upsuper.org">
  <link rel="stylesheet" href="support/ahem.css">
  <style>
    .test {
      font: 52px Ahem;
      writing-mode: vertical-rl;
    }
  </style>
</head>
<body>
  <p>Test passes if the two rectangles are vertically middle aligned.</p>
  <div class="test">
    <ruby><rb><span style="writing-mode: horizontal-tb">X</span></rb><rt>XXXXXXXX</rt></ruby>
  </div>
</body>
</html>
